Security Alert - security certificate for this site is not available?

We have users that get this when they log in a PC and try to run their first credit card payment of the day. No matter which option you choose, it takes about 60 seconds to run the first transaction, after that it's OK. It's just a nuisance but a fix would be great.

Go ahead and view the certificate. In the properties for the certificate should be a line for 'CRL' (Certificate Revocation List), which should have at least one (possibly more) methods of contacting the issuing CA to check to confirm that the certificate hasn't been revoked. http or ldap URLs are frequently seen in that entry. Determine why the workstation can't read from the CRL location, and fix that, and the Alert messages should go away.

I confirmed that I can get there. Are there any network ACLs which prevent that user from being able to access the verisign server on port 80? (You can see if you can hit that URL from that workstation...)

*blink* But... that's what the error means.
Okay... what about if you try to access that machine first thing.. before any transactions are run from the computer? Does it still work okay? (Any chance it's actually a DNS problem, and the sixty seconds is the time it takes the system to try a second DNS server?)

Is it at all possible that the date on the computer being used for CC processing is wrong by something in terms of days or weeks, such that the CRL looks out of date?

Well, you pointed us in the right direction. I showed our programmer and she said that only certain machines (cash register machines) were OK, while other call takers processing payments were getting it. Something do with with accessing an AS400 server.

New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately.
This Article and the Links apply to…

The Windows functions GetTickCount and timeGetTime retrieve the number of milliseconds since the system was started. However, the value is stored in a DWORD, which means that it wraps around to zero every 49.7 days. This article shows how to solve t…

Windows 8 comes with a dramatically different user interface known as Metro. Notably missing from the new interface is a Start button and Start Menu. Many users do not like it, much preferring the interface of earlier versions — Windows 7, Windows X…

In this video, we discuss why the need for additional vertical screen space has become more important in recent years, namely, due to the transition in the marketplace of 4x3 computer screens to 16x9 and 16x10 screens (so-called widescreen format). …